exam Maths Puzzle Numerical Ability

Thank you in advance for your help with this problem. How many liters of 60% acid solution must be added to 14 liters of a 10% acid solution to produce a 25% acid solution?

Read Solution (Total 0)

exam Other Question

The CBS television show 60 Minutes has been successful for many years. That show recently had a share of 20, meaning that among TV sets in use, 20% were tuned to 60 minutes. Assume The speed of train A is going 18 mph slower then the speed of train B. Train A travels 220 miles in the same time that it takes train B to travel 310 miles. Find the speed of each train.

Train A-

Train B-